<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>购物车综合案例</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .list {
            width: 990px;
            margin: 100px auto 0;
        }

        .item {
            padding: 15px;
            transition: all .5s;
            display: flex;
            border-top: 1px solid #e4e4e4;
        }

        .item:nth-child(4n) {
            margin-left: 0;
        }

        .item:hover {
            cursor: pointer;
            background-color: #f5f5f5;
        }

        .item img {
            width: 80px;
            height: 80px;
            margin-right: 10px;
        }

        .item .name {
            font-size: 18px;
            margin-right: 10px;
            color: #333;
            flex: 2;
        }

        .item .name .tag {
            display: block;
            padding: 2px;
            font-size: 12px;
            color: #999;
        }

        .item .price,
        .item .sub-total {
            font-size: 18px;
            color: firebrick;
            flex: 1;
        }

        .item .price::before,
        .item .sub-total::before,
        .amount::before {
            content: "¥";
            font-size: 12px;
        }

        .item .spec {
            flex: 2;
            color: #888;
            font-size: 14px;
        }

        .item .count {
            flex: 1;
            color: #aaa;
        }

        .total {
            width: 990px;
            margin: 0 auto;
            display: flex;
            justify-content: flex-end;
            border-top: 1px solid #e4e4e4;
            padding: 20px;
        }

        .total .amount {
            font-size: 18px;
            color: firebrick;
            font-weight: bold;
            margin-right: 50px;
        }
    </style>
</head>

<body>
    <div class="list">
        <!-- <div class="item">
      <img src="https://yanxuan-item.nosdn.127.net/84a59ff9c58a77032564e61f716846d6.jpg" alt="">
      <p class="name">称心如意手摇咖啡磨豆机咖啡豆研磨机 <span class="tag">【赠品】10优惠券</span></p>
      <p class="spec">白色/10寸</p>
      <p class="price">289.90</p>
      <p class="count">x2</p>
      <p class="sub-total">579.80</p>
    </div> -->
    </div>
    <div class="total">
        <div>合计：<span class="amount">1000.00</span></div>
    </div>
    <script>
        const goodsList = [
            {
                id: '4001172',
                name: '称心如意手摇咖啡磨豆机咖啡豆研磨机',
                price: 289.9,
                picture: 'https://yanxuan-item.nosdn.127.net/84a59ff9c58a77032564e61f716846d6.jpg',
                count: 2,
                spec: { color: '白色' }
            },
            {
                id: '4001009',
                name: '竹制干泡茶盘正方形沥水茶台品茶盘',
                price: 109.8,
                picture: 'https://yanxuan-item.nosdn.127.net/2d942d6bc94f1e230763e1a5a3b379e1.png',
                count: 3,
                spec: { size: '40cm*40cm', color: '黑色' }
            },
            {
                id: '4001874',
                name: '古法温酒汝瓷酒具套装白酒杯莲花温酒器',
                price: 488,
                picture: 'https://yanxuan-item.nosdn.127.net/44e51622800e4fceb6bee8e616da85fd.png',
                count: 1,
                spec: { color: '青色', sum: '一大四小' }
            },
            {
                id: '4001649',
                name: '大师监制龙泉青瓷茶叶罐',
                price: 139,
                picture: 'https://yanxuan-item.nosdn.127.net/4356c9fc150753775fe56b465314f1eb.png',
                count: 1,
                spec: { size: '小号', color: '紫色' },
                gift: '50g茶叶,清洗球'
            }
        ]

        // 渲染基本数据
        document.querySelector('.list').innerHTML = goodsList.map(element => {
            const { name, price, picture, count, spec, gift } = element
            const text = Object.values(spec).join('/')
            const giftText = gift ? gift.split(',').map(item => `<span class="tag">【赠品】${item}</span>`).join('') : ''
            return `
                <div class="item">
                    <img src="${picture}" alt="">
                    <p class="name">${name}${giftText}</p>
                    <p class="spec">${text}</p>
                    <p class="price">${price.toFixed(2)}</p>
                    <p class="count">x${count}</p>
                    <p class="sub-total">${((price * 100 * count) / 100).toFixed(2)}</p>
                </div>
            `
        }).join('')

        // 计算总价
        const totalPrice = goodsList.reduce((prev, current) => {
            return (prev * 100) / 100 + (current.price * current.count * 100) / 100
        }, 0)

        document.querySelector('.amount').innerHTML = totalPrice.toFixed(2)
    </script>
</body>

</html>